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Assertion: Atherosclerosis affects the v...

Assertion`:` Atherosclerosis affects the vessels that supply blood to the heart muscle.
Reason`:` It is caused by deposits of calcium, fat, chalesterol and fibrous tissue which makes the lumen of arteries narrower.

A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion .

B

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion

C

If Assertion is True but the Reason is False.

D

If both Assertion & Reason are false.

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In which disease arteries lumen become narrower due to the deposition of calcium fat and cholestrol?

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Assertion Arteries possess smooth muslces on their walls. Reason These smooth muscles help in regulating blood volume flowing through a tissue of organ.

The human ciculatory system can be thought of as a closed system of interconnecting pipes through which fluid is continuously circulated by two pumps the two pumps the right and left verticles of the heart, work as simple two-stroke force pumps. The muscles of the heart regulate the force by contracting and relaxing. the contraction (systole) lasts about 0.2s and a complete systole/diastole (contraction/relaxation) cycle lasts about 0.8s. For flood pressures and speeds in the normal range. the volume flow rate of blood through a blood vessel is directly proportional tot he pressure difference over a length of the vessel and to the fourth power of the radius of the vessel. The total mechanical energy per unit volume of blood just as it leaves the heart is E//V=rhogh+P+rhov^(2) Q. The blood pressure in a capillary bed is essentially zero, allowing blood to flow extremely slowly through the tissues in order to maximize exhange of gases nutrients and waste products what is the work on 200cm^(3) of blood against gravity to bring it to the capillaries to the brain 50 cm above the heart?

Assertion : Vitamin A is 11-cis-retinal, the lipid prosthetic group of the protein opsin in visual purple. Its deficiency affects all tissues , but the eyes are most readily affected. Reason : Youngs lacking a liver store of this vitamin are most affected by deficiency, which causes Xeropthalmia in human infants and young children .

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ALLEN-HUMAN PHYSIOLOGY -I-EXERCISE-IV(Assertion & Reason)
  1. Assertion : LUBB (First Sound) is of shorter duration and sharp sound...

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  2. Assertion : Portal system consists of veins which start from capillari...

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  3. Assertion: Atherosclerosis affects the vessels that supply blood to th...

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  4. Assertion : In amphibians incomplete double circulation presents. Re...

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  5. Assertion : In open circulatory system blood is pumped by heart passes...

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  6. Assertion: In fishes single circulation occur Reason : Fishes have a...

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  7. Assertion : Myocardial infarction often results from a sudden decrease...

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  8. Assertion : The sino-atrial node (SAN) is called the pacemaker. Reas...

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  9. Assertion : The opening between the right atrium and the right ventric...

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  10. Assertion : Cardiac output is the volume of blood pumped out by each v...

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  11. Assertion : First heart sound (LUBB) is produced at the beginning of v...

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  12. State: Two usefulness of Lactic acid bacteria. (LAB).

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  13. Assertion :- The wall of atria release ANF in response to high B.P. an...

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  14. Assertion :- Mostly aquatic animals are ammonotelic. Reason :- Ammon...

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  15. Assertion :- In fish ammonia is excreted by diffusion through gill sur...

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  16. Assertion :- Uricotelism is terrestrial adaptation. Reason :- Uric...

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  17. Assertion :- In PCT all of the essential nutrient and 70-80 percent of...

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  18. Assertion : While on going down the loop of Henle, the filtrate become...

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  19. Assertion :- Conditional reabsorption of Na^(o+) and water takes place...

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  20. Assertion :- Mammals have the ability to produce a concentrated urine....

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